Plate LI. 

 Fig. 1. 



RUTILE. 

 JEQUITINHONHA RIVER, BRAZIL. 



Forms: h (210), e (101). 



OCTAHEDRITE. 



Figs. 2-4. 



JEQUITINHONHA RIVER, BRAZIL. 



Forms: c (001), G (104), p (111), r (115), v (117), M (338), s t (5.1.19). 



